The Cranberry showing is located 2.8 kilometres west of the confluence of Eugene (Cranberry) Creek with the West Kettle River, at 910 metres elevation. The showing is on the north side of the creek and was owned by T. Henderson in 1937.
Cranberry Ridge occupies a stretch of country about 13 kilometres long, between Carmi and the mouth of Eugene (Cranberry) Creek. The hostrock is dominantly granodiorite of the Westkettle batholith, except at the northern end where it is overlain by metamorphosed lavas, tuffs and sediments of the Permian Wallace Formation. The granodiorite has been intruded by dikes, largely of andesitic composition. The mineral occurrences differ from those in the Wallace Formation. Pyrite is the dominant sulphide with only minor galena and occasionally chalcopyrite and molybdenite. Pyrargyrite and tetrahedrite are absent. There is generally a higher gold content. Many claims have been staked, leased and prospected without any commercial tonnage developments.
Granodiorite is the hostrock of the Cranberry showing. Immediately to the south, granodiorite has been intruded by large, coarse grained, feldspar porphyry dikes.
Mineralization is hosted in a 20 to 30 centimetre wide quartz vein which dips 30 degrees north along the footwall of a 2.4 to 2.7 metre wide feldspar porphyry dike. Granodiorite in the footwall has been altered over 91 centimetres width. Mineralization appears to extend for about 7.6 metres before being obscured by overburden. The quartz vein is crystalline and vuggy with pyrite and specular hematite. About 137 metres west, a nearly flat quartz vein is 5 to 91 centimetres wide and carries pyrite. This vein has been traced another 91 metres farther west.
A sample taken in 1937 across 20 to 25 centimetres of the footwall quartz yielded 6.8 grams per tonne gold and 17.8 grams per tonne silver. A select sample of sulphides yielded 31.5 grams per tonne gold and silver (Minister of Mines Annual Report 1937, Part D - Special Report by M.S. Hedley).